Diallel analysis of wheat grain protein content and yield in f 1 and f 2 generations under contrasting nitrogen conditions a. A diallel cross is a mating scheme used by plant and animal breeders, as well as geneticists, to investigate the genetic underpinnings of qualitative and quantitative traits. Diallel analysis of wheat grain protein content and yield. Diallel analysis approaches to identify superior spring wheat. This study guide consists of approximately 42 pages of chapter summaries, quotes, character analysis, themes, and more everything you need to sharpen your knowledge of a grain of wheat. N the usual form of diallel analysis genetic values are assumed as fixed, which may distort evaluations and even bias the estimated genetic values henderson 1975. In order to study genetic architecture of physiological criteria of drought tolerance in wheat using different diallel techniques, an experiment was conducted on six.
Pdf biplot analysis of diallel data in strip rust of wheat. Stability of baking quality in bread wheat using several. Correlation and factor analysis in spring bread wheat genotypes 7 agronomic traits are a reflection of gene effects. Wheat of other classes wheat of other classes is a gradedetermining factor that is assessed on a 15gram portion after the removal of dockage and shrunken and broken kernels.
The general and specific combining ability variances were significant in all generations for all the traits except specific combining ability variance for number of spikes per plant in. Correlation and path coefficient studies of yield and yield. Different statistical procedures have been used in modeling crop yield, including principal component analysis and factor analysis westerlund et al. In a full diallel, all parents are crossed to make hybrids in all possible combinations. Several methods for analysis have been adopted in which parents may be pure lines or open pollinated varieties. Data were 11 missing at random from one replication, one location and one year for geno. The objective of this study was to establish the interrelationship and direct. Diallel analysis of wheat grain protein content and yield in f 1 and f 2 generations under contrasting nitrogen conditions. The mode of inheritance and gene effect for plant height of 7x7 half diallel crosses of wheat varieties and lines was evaluated in f1 and f2 generation. In order to determine stable bread wheat genotypes with high grain yield via a single parameter, field experiments were conducted with 20 genotypes for 3 consecutive years 201120 under two different conditions irrigated and rainfed in a randomized complete block design with three replications in. Heterosis and combining ability analysis for yield and its components in bread wheat triticum aestivum l.
Diallel analysis of wheat streak mosaic virus resistance in. Correlation studies are useful in measuring the strength and the direction of these relationships among the different characters and grain yield gashaw et al. It implies that the wheat parents used in this study have complementary genes, and these traits can be assessed together in the diallel analysis. Durum wheat, genetic parameters, diallel cross, agronomic traits introduction plant breeding started by the cultivation seeds of plants selected by early farmers and the availability of genetic variation has been the key to improvement plant. Pdf diallel analysis for plant height in winter wheat. Affymetrix support by product for genechip wheat genome array. Heterosis and combining ability analysis for yield and its. Davis point elimination of wheat from the diet is the holy grail of weight loss. Genetic analysis of physiological indicators of drought tolerance in bread wheat using diallel technique. Variations include half diallels with and without parents, omitting reciprocal crosses.
In his patient population, he recounts numerous occurrences of rapid, effortless weight loss of 10, 20, or even 50. Path analysis of yield and yield components in synthetic bread wheat triticum aestivum l. Here, only data for the in analyzing ontario winter wheat performance trial percentage of infected kernels were used. It is the most important staple food of about two billion people 36% of the world population.
Part of theagricultural science commons,agriculture commons,agronomy and crop sciences commons,biostatistics commons, and thegenetics commons. Economic importance and taxonomy of the wheat wheat triticum aestivum l. In each location and year, the ten wheat genotypes were evaluated for grain yield tha. There are four main types of diallel mating design. Abd elaleem3 and zainab elrashidy4 1 department of agronomy, faculty of agriculture, cairo university, giza, egypt. A grain of wheat chronicles the events leading up to kenyan independence, or uruhu, in a kenyan village. Winter wheat, which accounts for 7080 percent of producti on, is sown in the fall and harvested in the spring or summer. Durum wheat, hard red spring wheat, hard red winter wheat, soft red winter wheat, and unclassed wheat in the classes hard white wheat and soft white wheat. Package diallelanalysisr april 9, 2016 type package title diallel analysis with r version 0. Diallel cross and analysis not only prepare the genetic variation. Diallel analysis and its applications in plant breeding pdf.
The analysis limited to the homozygous parents and f 1 generation allows estimation of genetic parameters unbiased by linkage and assessment of dominance in the polygenic systems under study effects mather and jinks, 1982. Pdf the mode of inheritance and gene effect for spike length of 5x5 full diallel crosses of wheat varieties was estimated in f1 generation. Application of diallel analyses in crop improvement. For proper recommendation of the most reliable method of effective crop improvement, the knowledge and practice of diallel analysis is paramount. Combining ability analysis for grain filling duration and. Diallel analysis of combining ability for yield and yield. Combining ability studies for grain yield and its primary component traits in diallel crosses involving seven diverse wheat cultivars of bread wheat triticum aestivum l. Stability of quality in bread wheat was investigated for the first time with the alveograph test, a rheological test providing four technological traits. Wheat bellyan analysis of selected statements and basic theses from the book julie jones st. Sughroue iowa state university follow this and additional works at. Copies of the entire microfilm supplement may be purchased from library photographic service, university of california, berkeley. From a genetical point of view, two assumptions are critical in attempts to interpret the resuits of diallel analyses. Wheat bellyan analysis of selected statements and basic.
Allard, a diallel cross analysis of heading date in wheat, hilgardia, volume 32, number 6, april, 1962. Pdf diallel analysis for spike length in winter wheat. Ismail agronomy department, faculty of agriculture, fayoum university, 63514fayoum, egypt corresponding author abstract introduction wheat triticum aestivum l. Biplot analysis of diallel data in strip rust of wheat 607 dehghani h, moghaddam m, ghannadha mr 2005 biplot analysis of diallel cross data for infection type of wheat strip rust. Combining ability of wheat genotypes in two models of diallel analyses objectives, but often the models are analyzed as fixed to simplify calculations resende 1999. Path analysis of grain yield and yield components and some agronomic traits in bread wheat 947 results and discussion the results of analysis of variance showed highly signi. Since then, the biplot has been effect was observed for this trait, averages of the reciprocals used in multienvironment trial met data analysis. Diallel analysis of some important grain yield traits in bread wheat crosses natasa ljubicic1, sofija petrovic2, marko kostic2, miodrag dimitrijevic2, nikola hristov3, ankica kondicspika4, radivoje jevtic4 1biosense institute, dr zorana dindica 1, 21 000 novi sad, serbia. Combining ability analysis for grain filling duration and yield traits in spring wheat triticum aestivuml. Correlation and path coefficient studies of yield and yield associated traits in bread wheat triticum aestivum l. The mean squares due to gca and sca showed highly significant differences for all the. Articles combining ability of wheat genotypes in two. Bread wheat, phenotypic stability, ammi model, biplot analysis.
Yield stability analysis of bread wheat lines using ammi model f atemeh b avandpori, j afar a hmadi and s eyed m ohssen h ossaini department of crop production and breeding, imam khomeini international university, qazvin, iran. Combining ability analysis was undertaken in a 12 x 12 half diallel progeny of bread wheat for grain yield and its component characters under timely e 1 and late sown e 2 conditions. Combining ability analysis over environments in diallel. Wheat genome array pdf, 308 kb wheat genome array pdf, 84kb japanese version. Madhu choudhary, kana ram kumawat and ravi kumawat department of plant breeding and genetics, s.
Agriculture university, jobner303329, jaipur rajasthan, india. Based on prescreening results of 10 wheat genotypes, five wheat genotypes 3 with. Estimate of genetic parameters of grain yield and some. Path analysis of yield and yield components in synthetic. The two main genetic parameters of diallel analysis are gca and sca which are essential in developing breeding strategies. The mode of inheritance, calculated for each combination. Combining ability analysis in diallel crosses of wheat triticum aestivum l in order to realize the combining ability of wheat, 15 hybrids were synthesised in a 6 x 6 diallel fashion excluding reciprocals and to isolate the good combiner for various yield component traits. Predicting yield and stability analysis of wheat under. Factor analysis is a multivariate statistical method for. Analysis of combining ability over environments in diallel. Per capita consumption of wheat in the united states exceeds that of any other single food staple. Spring wheat is planted in the spring and harvested in late summer or early fall. Four winter wheat varieties srbijanka, partizanka, kg56 and pkb111 have been selected for diallel crossing in other to study the mode of inheritance, gene effect and genetic variance.
From a statistical point of view the critical issue concerns the choice of a model with fixed or random genotypic effects. Diallel analysis of wheat streak mosaic virus resistance in winter wheat frederic hakizimana, amir m. Yield stability analysis of bread wheat lines using ammi model. Generation means analysis of wheat streak mosaic virus resistance in winter wheat frederick hakizimana 1, 2, amir m. A diallel cross is a mating scheme used by plant and animal breeders, as well as geneticists, to investigate the genetic underpinnings of quantitative traits. Varieties and environments were representative of french agricultural practices. There are several hundred varieti es of wheat, which fall into one of six classes. Heterosis and combining ability analysis were studied in a 7 x 7 diallel set of bread wheat. The diallel analysis method has been frequently used for parent selection as an appropriate scheme to obtain genetic information of yield traits in a short period of time, which can be used for improving efficiency in wheat breeding programs kohan and heidari, 2014. Introduction wheat flour is one of the most nutritious plant foods available, offering an array of minerals and critical nutrients. Diallel analysis and its applications in plant breeding authors. Proper analysis of the diallel mating design jay r. Genes a software package for analysis in experimental. A diallel cross analysis of heading date in wheat hilgardia.
Wheat grains were harvested using the guide of15% moisture in grain, yellowing of spikelets and hard dough stage of grains. Pdf diallel analysis of wheat grain protein content and. Analysis of variance revealed the presence of significant variance due to gca among the parent for all. Assessment of stability was reliable because a large set of varieties ten were grown over a wide range of environments 14. Significant effects of the gca and sca based on multivariate diallel analysis also were observed by benin et al. Evaluation of grain yield and some agronomic characters in.